Datasheet
28
LTC3736-1
37361f
PART NUMBER DESCRIPTION COMMENTS
LTC1628/ Dual High Efficiency, 2-Phase Synchronous Constant Frequency, Standby, 5V and 3.3V LDOs, V
IN
to 36V,
LTC1628-PG Step-Down Controllers 28-Lead SSOP
LTC1735 High Efficiency Synchronous Step-Down Controller Burst Mode Operation, 16-Pin Narrow SSOP, Fault Protection,
3.5V ≤ V
IN
≤ 36V
LTC1772 Constant Frequency Current Mode Step-Down 2.5V ≤ V
IN
≤ 9.8V, I
OUT
Up to 4A, SOT-23 Package, 550kHz
DC/DC Controller
LTC1773 Synchronous Step-Down Controller 2.65V ≤ V
IN
≤ 8.5V, I
OUT
Up to 4A, 10-Lead MSOP
LTC1778 No R
SENSE
TM
Synchronous Step-Down Controller Current Mode Operation Without Sense Resistor,
Fast Transient Response, 4V ≤ V
IN
≤ 36V
LTC2923 Power Supply Tracking Controller Controls Up to Three Supplies, 10-Lead MSOP
LTC3251 Series 500mA High Efficiency, Low Noise, Inductorless 2-Phase, Spread Spectrum Operation, 10-Pin MSOP Package
Step-Down DC/DC Converters
LTC3252 Dual, Low Noise, Inductorless Step-Down DC/DC Converter Spread Spectrum Operation, 4mm × 3mm 12-Pin DFN Package
LTC3416 4A, 4MHz, Synchronous Step-Down DC/DC Converter 95% Efficiency, V
IN
: 2.25V to 5.5V, I
SD
= <1µA,
with Output Tracking TSSOP-20E Package
LTC3701 2-Phase, Low Input Voltage Dual Step-Down DC/DC Controller 2.5V ≤ V
IN
≤ 9.8V, 550kHz, PGOOD, PLL, 16-Lead SSOP
LTC3708 Fast 2-Phase, No R
SENSE
Buck Controller with Constant On-Time Dual Controller, V
IN
Up to 36V, Very Low
Output Tracking Duty Cycle Operation, 5mm × 5mm QFN Package
LTC3728/LTC3728L Dual, 550kHz, 2-Phase, Synchronous Step-Down Constant Frequency, V
IN
to 36V, 5V and 3.3V LDOs,
Switching Regulator 5mm × 5mm QFN or 28-Lead SSOP
LTC3736 Dual, 2-Phase, No R
SENSE
, Synchronous Controller with Output V
IN
: 2.75V to 9.8V, I
OUT
Up to 5A, 4mm × 4mm QFN Package
Tracking
LTC3737 Dual, 2-Phase, No R
SENSE
Controller with Output Tracking V
IN
: 2.75V to 9.8V, I
OUT
Up to 5A, 4mm × 4mm QFN Package
LTC6902 Multiphase Oscillator with Spread Spectrum Frequency Resistor Programs Nominal Frequency and Spreading;
Modulation 2-, 3-, or 4-Phase Outputs; 10-Pin MSOP Package
LT/TP 0804 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2004
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
TYPICAL APPLICATIO
U
SGND
FREQ
IPRG2
IPRG1
V
FB1
I
TH1
SW1
R
VIN
10Ω
R
ITH2
15k
C
ITH2
220pF
C
SS
10nF
C
IN
10µF
×2
C
VIN
1µF
V
IN
5V
V
IN
C
ITH2B
100pF
R
ITH1
15k
C
ITH1
220pF
2200pF
C
ITH1A
100pF
R
FB1B
187k
R
FB1A
59k
PGOOD
V
FB2
TRACK
25
I
TH2
TG2
LTC3736EUF-1
PGND
TG1
SSDIS
BG1
PGND
22
21
20
19
18
17
16
15
14
13
12
11
10
23
24
1
2
3
4
5
9
8
7
6
SENSE1
+
MP1
MP2
L1
1.5µH
L2
1.5µH
MN1
MN2
RUN/SS
BG2
PGND
PGND
SW2
SENSE2
+
R
TRACKB
1.18k
R
TRACKA
590Ω
R
FB2A
59k
R
FB2B
118k
C
OUT2
150µF
C
OUT1
150µF
V
OUT1
2.5V
2A
V
OUT2
1.8V
2A
37361 TA02
+
+
MP1, MP2: FDC638P
MN1, MN2: FDC637N
L1, L2: VISHAY IHLP-2525CZ-01
C
OUT1
, C
OUT2
: SANYO 4TPB150MC
2-Phase, Spread Spectrum Dual Output, Synchronous DC/DC Converter
No R
SENSE
is a trademark of Linear Technology Corporation.